AMERICAN ENTOMOLOGY. 55 



feet, intermediate and posterior pairs, with yellow tibiae and tarsi, 

 a rufous spot being near the knee; anterior thighs blackish on 

 the inner side, with a yellow exterior inferior margin, and numer- 

 ous spines on the inferior edge, of which one is very prominent: 

 terguin, at the base of the first and second segments, black, the 

 former margined with yellow: venter black at base, segments 

 broadly margined with yellow. 



Female. The yellow color, and marginings, excepting on the 

 feet, and on the first segmenl of the thorax, obsolete; the wings 

 are darker than those of the mule, and the hyaline portion of the 

 wings is tinctured with a shade of the general color. 



Obs. A specimen of the female of this curious insect, was pre- 

 sented to me, some time since, by Mr. William Mason, of this 

 city; it was found near Philadelphia, by Mr. Tyler, f had the 

 good fortune to find a male, when travelling with Major Long's 

 party on St. Peters' river, in the North-West Territory. 



The middle figure represents the male, and the lower figure 

 the female. On the right is an enlarged view of the head, with 

 the antennae, and part of the thorax, and on the left, is an en- 

 larged view of an anterior foot. 



Mantispa interrupta. — Specific characU r. Wings hyaline, 

 with a narrow ferruginous costal margin, widely interrupted near 

 the tip. 



Desc. Body pale : antennrc rather slender, perfectly filiform, 

 not differently colored at tip, but somewhat paler at base: thorax, 

 anterior segment rather long, annulate, with slightly elevated 

 obtuse lines, which give it a somewhat wrinkled appearance; two 

 small tubercles before the middle, placed transversely; posterior 

 segment greenish-yellow, with a longitudinal brown line, and 

 another on each side above the wing: wings alike, hyaline, thi 

 ferruginous costal margin is narrow, interrupted beyond the car- 

 pus, so as to leave only a spot at tip of the wing; on the sub- 

 margin, is an irregular quadrate dark fuscous spot, confluent with 

 the carpus; the ferruginous margin of the superior wine, j- paler 

 towards the base: postpectus, and intermediate and posterior feet, 

 pale greenish-yellow, the front of the former dusky : tergum pale 

 reddish-fulvous, incisures, and vertebral line, blackish : venter 

 pale yellow, 



Obs. The annexed figure is taken from the only specimen I 



